Class와 Decorator를 사용한 koa의 router이다. 기능은 koa-router와 같다. koa-decorouter는 koa-router 위에서 돌아가는 wrapper이다.
define router in server side:
// filename: method-router.ts
import {
BaseRouter,
Get,
Post,
Prefix,
IContext,
INext,
KoaRouter,
} from '../router'
@Prefix('/method')
class MethodRouter extends BaseRouter {
@Get('/get')
get(ctx: IContext, next: INext) {
// get query
ctx.body = ctx.query
}
@Post('/post')
async post(ctx: IContext, next: INext) {
// using 'koa-bodyparser' middleware
ctx.body = ctx.request.body
}
}
export default new MethodRouter().routerkoa app in server side:
// filename: app.ts
import methodRouter from './method-router'
...
// register routers
app.use(methodRouter.routes())
app.use(methodRouter.allowedMethods())client side:
import axios from 'axios'
const req = axios.create({baseURL: 'http://localhost:8110'})
const resGet = await req.get('/method/get?say=Hello%20World!!')
console.log(resGet.data) // {say: 'Hello World!!'}
const resPost = await req.post('/method/post', {say: 'Hello World!!'})
console.log(resPost.data) // {say: 'Hello World!!'}define router in server side:
import {
BaseRouter,
Get,
Post,
Prefix,
IContext,
INext,
KoaRouter,
} from '../router'
@Prefix('/param')
class ParamRouter extends BaseRouter {
@Get('/:to/:path')
toPath(ctx: IContext, next: INext) {
ctx.body = {
to: ctx.params.to,
path: ctx.params.path,
}
}
}
export default new ParamRouter().routerclient side:
import axios from 'axios'
const req = axios.create({baseURL: 'http://localhost:8110'})
const res = await req.get('/param/foo/bar')
console.log(res.data)
// {to: 'foo', path: 'bar'}@BeforeEach는 모든 method가 실행되기 전 각각 한번씩 실행 된다. @Before는 바로 밑의 method가 실행되기 전에 실행된다. 실행 순서는 @BeforeEach가 @Before보다 먼저 실행되며 해당 method에 더 가까운 Decorator가 먼저 실행된다.
define router in server side:
import {
BaseRouter,
Get,
Post,
Prefix,
IContext,
INext,
Before,
BeforeEach,
BeforeEachWith,
} from '../router'
@Prefix('/before')
@BeforeEachWith(async (ctx: IContext, next: INext) => {
ctx.order || (ctx.order = [])
ctx.order.push(3)
await next()
ctx.order.push(9)
})
@BeforeEachWith(async (ctx: IContext, next: INext) => {
ctx.order || (ctx.order = [])
ctx.order.push(2)
await next()
ctx.order.push(10)
})
class BeforeRouter extends BaseRouter {
@BeforeEach()
async beforeEach(ctx: IContext, next: INext) {
ctx.order || (ctx.order = [])
ctx.order.push(0)
await next()
ctx.order.push(12)
}
@BeforeEach()
async beforeEach2(ctx: IContext, next: INext) {
ctx.order || (ctx.order = [])
ctx.order.push(1)
await next()
ctx.order.push(11)
}
async before(ctx: IContext, next: INext) {
ctx.order || (ctx.order = [])
ctx.order.push(4)
await next()
ctx.order.push(8)
}
@Before(async (ctx: IContext, next: INext) => {
ctx.order || (ctx.order = [])
ctx.order.push(5)
await next()
ctx.order.push(7)
})
@Before('before')
@Get('/')
root(ctx: IContext, next: INext) {
ctx.order || (ctx.order = [])
ctx.order.push(6)
ctx.body = {data: ctx.order}
}
}
export default new BeforeRouter().routerclient side:
import axios from 'axios'
const req = axios.create({baseURL: 'http://localhost:8110'})
const res = await req.get('/before')
const data: number[] = res.data.data
console.log(data)
// [ 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12 ]define router in server side:
import {
BaseRouter,
KoaRouter,
Get,
Post,
Before,
Prefix,
IContext,
INext,
} from '../router'
function authentication(user: string) {
return (ctx: IContext, next: INext) => {
if(ctx.headers['x-access-token'] !== user) {
ctx.throw(401, 'Unauthorized')
}
next()
}
}
@Prefix('/auth')
class AuthRouter extends BaseRouter {
@Before(authentication('naki'))
@Get('/')
auth(ctx: IContext, next: INext) {
ctx.body = {data: 'Authorized!!'}
}
}
export default new AuthRouter().routerclient side:
try {
const res = await req.get('/auth', {headers: {
'x-access-token': 'naki'
}})
console.log(res.data.data)
} catch(err) {
console.error(err.response.data.error.message)
}
// Authorized!!